Azure Functions
An Azure service that provides an event-driven serverless compute platform.
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How to fix Azure Message Queue Trigger Function App Not Running the "Run" Method
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Joe Porschart
0
Reputation points
I am having trouble with setting my Azure Message Queue Trigger Function App so that it deploys and runs without error. I had it reading the queue but not running the "Run" Method at one point. At that time, I could run it using the Test/Run option in Azure without error. I do have it converted to isolated worker model with those latest references. Included code below
Un-called method...
[Function(nameof(FunctionMapData))]
public static void Run([QueueTrigger("maptaskqueue", Connection = "StorageConnectionString")] QueueMessage myQueueItem, FunctionContext context)
local.settings.json...
{
"IsEncrypted": false,
"Values": {
"LOCALOnePortalSQLDatabaseConnection": "",
"OnePortalSQLDatabaseConnection": "",
"LOCALStorageConnectionString": "",
"StorageConnectionString": "",
"LOCALAzureWebJobsStorage": "",
"AzureWebJobsStorage": "",
"emailUserName": "",
"emailPassword": "",
"emailHost": "",
"emailPort": "",
"emailSubject": "",
"emailContent": "",
"emailErrorSubject": "",
"emailErrorContent": "",
"functionTimeout": "00:60:00",
"FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated"
}
}
Project...
<PropertyGroup Label="Globals">
<SccProjectName>SAK</SccProjectName>
<SccProvider>SAK</SccProvider>
<SccAuxPath>SAK</SccAuxPath>
<SccLocalPath>SAK</SccLocalPath>
</PropertyGroup>
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<AzureFunctionsVersion>v4</AzureFunctionsVersion>
<OutputType>Exe</OutputType>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Azure.Identity" Version="1.13.2" />
<PackageReference Include="Azure.Storage.Blobs" Version="12.24.1" />
<PackageReference Include="ExcelDataReader" Version="3.7.0" />
<PackageReference Include="Azure.Data.Tables" Version="12.10.0" />
<PackageReference Include="Azure.Storage.Files.Shares" Version="12.22.0" />
<PackageReference Include="Azure.Storage.Queues" Version="12.22.0" />
<PackageReference Include="Microsoft.ApplicationInsights.WorkerService" Version="2.23.0" />
<PackageReference Include="Microsoft.Azure.Cosmos" Version="3.52.0" />
<PackageReference Include="Microsoft.Azure.Functions.Worker" Version="2.0.0" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.ApplicationInsights" Version="2.0.0" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore" Version="2.0.2" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.ServiceBus" Version="5.22.2" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Storage.Queues" Version="5.5.2" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="2.0.5" OutputItemType="Analyzer" />
<PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.2" />
<PackageReference Include="Microsoft.Extensions.Azure" Version="1.12.0" />
<PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="9.0.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="9.0.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="9.0.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.6" />
<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
<PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.6" />
</ItemGroup>
<ItemGroup>
<FrameworkReference Include="Microsoft.AspNetCore.App" />
</ItemGroup>
Azure Functions
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Krishna Chowdary Paricharla 90 Reputation points Microsoft External Staff Moderator2025-06-26T09:27:54.34+00:00 Hello Joe Porschart,
Thanks for reaching out!
If your Azure Message Queue Trigger Function App isn't running the "Run" method, try these steps to troubleshoot:
- Check that the Function attribute is applied to your method, which should be public, static, and uniquely named in the project. Double-check the function name reference.
- Confirm the QueueTrigger attribute is set up properly. The queue name (maptaskqueue) must match the Azure Storage queue, and the connection string (StorageConnectionString) should be correctly configured in your local.settings.json.
- Review your local.settings.json file to ensure it’s correctly formatted and all necessary connection strings are present and accurate.
- Verify all necessary NuGet packages, especially those for Azure Functions and Queue triggers, are included and compatible with your .NET version.
- Ensure that FUNCTIONS_WORKER_RUNTIME is set to dotnet-isolated in local.settings.json, as you have done.
- Use Azure Application Insights or Azure Functions logs to check for any error messages or warnings that might explain why the function isn’t running.
- Before deploying, run the function locally to see if it triggers correctly. Use the Azure Functions Core Tools to simulate the queue trigger and check for any runtime errors.
Please follow the suggested steps above and provide us with an update.
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Krishna Chowdary Paricharla 90 Reputation points Microsoft External Staff Moderator
2025-06-27T14:33:30.7533333+00:00 Hello Joe Porschart,
Just checking in to see if you've had a chance to review my previous response and let me know if you have any additional questions.
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